<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>定位</title>
    <link href="style1.css" type="text/css" rel="stylesheet">
</head>
<body>
    <div id="position1"></div>
    <div id="position2"></div>
    <div id="position3"></div>
    <script>
        for(var i=0;i<100;i++){
            document.write(i+"<br/>");

        }
    </script>
</body>
</html>